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Pollination of Blueberry Bushes

Blueberry bushes, like other fruit-bearing plants, must be pollinated to produce fruit. Unlike other plants, however, blueberries can be challenging. In order for flowers to "set" or produce fruit, a specific set of requirements must be met.
  1. Physical Limitations

    • Blueberry flowers have a bell shape

      Blueberry flowers have a bell shape and grow in bunches. Pollen is heavy and sticky, and can't easily be blown around by the wind. Also, any pollen falling from a flower is unlikely to land inside another bell.

    Sterility

    • Many types of blueberry are self-sterile: they can not be pollinated by other flowers of the same variety, and must instead be cross-pollinated with another type of blueberry.

    Solutions

    • Plant three or more types of blueberries in a patch, and have bees pollinate the blueberry plant flowers.

    Types of Bees

    • Pollen bearing bumblebee on a blueberry bush

      Native bumblebees and southeastern blueberry bees are good natural blueberry pollinators. Honeybees also are effective, and are often used in commercial blueberry farms.

    Challenges

    • Native bee populations have been dwindling for decades. To pollinate blueberries on even a small patch, you may need to introduce honeybees. In addition, badly pruned and nurtured blueberries might set only 10% to 20% of their fruit. Take the time to care for your patch properly, and it can set up to 100% of its blossoms.